Grain-separator.



J. GUNN.

GRAIN SEPARATOR.

APPLICATION FILED APR. 6. 1914.

2 SHEETS-SHEET I.

Patented Feb. 27,- 1917.

WITNESSES fix 7% iNVENTOR y I D co Puom umm. vusmmrou. n c.

' J. GUNN.

GRAIN SEPARATOR. APPLICATION. FILED APR. 6, 1914.

Patented Feb. 27, 1917.

2 SHEETS-SHEET 2.

INVENTOR By a w' i v Attorney tion consists essentially in the arrangement JOHN 'GUNN, 0F WINNIPEG, MANITOBA, CANADA.

GRAIN-SEPARATOR.

To all whom it may concern:

Be it knownth'at '1, JOHN GUNN, of the city of W'innipeg, in the Province of Manitoba, Canada, have invented certain new and useful Improvements in Grain- Separators, of which the following is the specification. Y Y v The invention relates to improvements in grain separators and the object of the invention is'to provide a relatively small hand separator which can be sold at a reasonable price thereby allowing the farmer with a small. grain yield to harvest his own grain without having to buy an expensive outfit or the alternative, without having to hire a large engine operated separator as is now customarily used. A further object of the invention is to provide an efiicient easily operated hand machine which will separate the straw, the chaff and the grain.

With the above objects in view the invenand construction of parts hereinafter more particularly described and later pointed out in the appended claims.

Figure 1 represents a complete machine.

Fig. 2 represents a front end view.

Fig. 3 represents a rear end view.

Fig. 4 represents a longitudinal sectional view through the machine.

Fig. 5 represents an enlargeddetailed perspective view of a portion of one of the shakers. v

Fig. 6 represents an enlarged detailed perspective view of the shoe.

In the drawings like characters of reference indicate corresponding parts in each side view of the figure.

1 represents an open centered box like body formed from pairs of side beams 2 and 3, upright forward andrear pairs of corner posts 4 and 5 and suitably disposed cross beams 6, the sides being boxed in with face boards 7 y 8 is a main drive. shaft suitably mounted in bearings 9 secured to the beams 2 which shaft is supplied at the one end with a com= bined fly and gear wheel 10 fitted with a hand piece 11 and at the other end with a pulley 12 supplied also with a hand piece 13.

14 represents a cylinder provided with extending teeth 15, the said cylinder be- Specification of Letters Patent.

; ing fixed on a rear counter shaft 16 suitwith a pinion 20 which meshes continuously with the gear 10. v I

This arrangement of gears connects the cylinder shaft to the main shaft and gives the cylinder shaft a very high speed of rotation in respect to the main shaft.

22 represents a concave located'above the cylinder and supplied also with teeth 23 which co-act with the cylinder teeth to thresh the straw passed to the cylinder. As a matter of convenience the concave is carried by a pair of arms 24 pivotally secured to the standards 25' mounted on a guard plate 26 carried by the body.

This construction allows the concave to be drawn back from the cylinder for cleaning purposes as will readily be understood. I have not considered'it necessary to describe in detail the construction of the cylinder or concave as they are well known in the larger separating machines now in use. I wish, however, to'point out that the straw fed to the cylinder is passed over the cylinder and not under as occurs in the majority of large or engine driven separating machines.

Patented Feb. 2'7, 1917.

Application filed April 6, 1914. Serial No. 829,914.

27 is a crank shaft having the ends thereof v rotatably mounted in the sides of the body toward the front of the machine.- The shaft is supplied in the present instance with three cranks 28, 29 and 30 set at 180 apart.

The shaft is fitted with a small pulley 31 which is connected through a belt 32 ward support for the shakers.

It is here tobe noticed that the shakers are inclined gradually upwardly in passing from the rear to the front of the machine, this being best shown in Fig. 4 of the drawing.

Beneath the shakers I have located a shoe 4. which is now described in detail It comprises a substantially rectangular frame 48 formed from side pieces 49 and 50 and end pieces 51 and 52, the frame being designed so that it will fit within the body.

The rear end of the frame is supplied with a hook 53 which is suspended pivot-ally from a link 54 connected with the rear end of the central shaker.

The front end of the frame is supplied with a cross bar 55 to which I have secured a pair of vertically disposed spring bars 56 and 57 having their upper ends permanently fastened at 58 to the forward ends of the beams 2. These spring bars support the forward end of the shoe and also allow easy movement of the shoe when it is reciprocated as later described.

The rear end of the frame 48 is fitted with a cross plate 59 forming a pan while the for ward end is provided with a perforated cross plate 60, the perforations in the forward end of the latter plate being larger than those in the rear end as best illustrated in Fig. 6 of the drawings.

A screen 61 of fine mesh is stretched across the frame 48 directly beneath the rear end of the perforated plate 60. The forward end of the frame 48 carries an elevated rearwardly inclined pan 62 which has the rear end terminating at a point directly above the forward end of the pan 59.

63 is a chute secured to the body of the machine and located directly beneath the screen.

64 is a deflecting plate passing across the body of the machine immediately to the rear of the cylinder.

65 is a guard plate passing across the body' to the rear of the cylinder.

66 is a pivoted table connected pivotally'.

to the rear end of the machine and over which the grain is passed to the cylinder.

.67 is a delivery chute connected to the forward end of the machine and designed to receive the straw tossed from the forward ends of the shakers.

shoe suspended beneath The machine is mounted on suitable car riage wheels 68 connected to the body so that it can be conveniently moved from place to place.

The operation of the machine is now described assuming the attendant turns the main shaft in the direction indicated by the arrow Fig. 1- and that he feeds grain to the machine over the deflecting plate.

The grain delivered to the cylinder is passed up over the same and is beaten up by the teeth of the concave and cylinder. From the cylinder it falls onto the rear ends of the shakers and they gradually work the straw forwardly and allow the grain and chaff to fall through the openings 45. The shakers are obviously oscillated by the action of the cranks and the hangers in amanner which will cause the straw to be gradually driven forward by the flanges and finally passed over the forward end of the shakers onto the delivery chute. The grain and chafi falling through the openings 45 are caught by the pans 59 and 62 and from them delivered to the perforated cross plate 60, this being effected not only by the natural inclination of the pans but by the reciprocation of the shoe which is caused to move backwardly and forwardly owing toits suspension from the central shaker. The grain and fine chaff drops through the small perforations in the cross plate onto the screen while the coarser chaff is passed forwardly on the plate to the larger perforations where it drops through onto the dropping on the screen are separated, the chaff being passed over the forward end of the screen while the grain drops through and is received by the chute 63.

In this way the straw chaff and grain are separated and can be separately collected.

What I claim as my invention is;

1. Tn a grain separator, the combination with a boX like body and a plurality of similar oscillating shakers suspended within the body and passing lengthwise thereof, of a shoe suspended beneath the shakers and having a downwardly inclined rear pan, a downwardly inclined forward perforated plate continuous with the pan, a screen disposed beneath the plate, and an elevated rearwardly and downwardly inclined front ground. The finer chaff and grain pan located above the perforated plate and having the lowermost end thereof terminating directly above the lowermost portion of the rear pan.

2. In a grain separator, the combination with a box like body and a plurality of similar oscillating shakers suspended within the body and passing lengthwise thereof, of a the shakers and presenting a downwardly inclined rear pan continuous with a downwardly inclined forward perforated plate having the perforations in the forward part thereof larger than in the rear part, a screen disposed beneath the rear part of the perforated plate, and an elevated rearwardly and downwardly inclined front pan located above the perforated plate and having the lowermost end thereof terminating directly above the lowermost portion of the rear pan.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 7

JOHN GUNN.

In the presence of- G. S. Roxnrmen, S. Smmm'r.

Washington, D. G. 

